动词短语
中文翻译：涉及
同义词：
['be concerned with', 'be involved in', 'concern about']
例句：
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1. The matter to be discussed is the budget for next year's project.
需要讨论的问题是明年项目的预算。
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2.He matters to me because he is my friend.
他对我来说很重要，因为我是他的朋友。
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3.The matter to be resolved is the conflict between the two parties.
需要解决的问题是双方之间的冲突。